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塔河油田塔深3井区奥陶系深层油气成藏的地球化学证据

刘永立 罗明霞 夏永涛 邵小明

刘永立, 罗明霞, 夏永涛, 邵小明. 塔河油田塔深3井区奥陶系深层油气成藏的地球化学证据[J]. 石油实验地质, 2017, 39(3): 377-382. doi: 10.11781/sysydz201703377
引用本文: 刘永立, 罗明霞, 夏永涛, 邵小明. 塔河油田塔深3井区奥陶系深层油气成藏的地球化学证据[J]. 石油实验地质, 2017, 39(3): 377-382. doi: 10.11781/sysydz201703377
Liu Yongli, Luo Mingxia, Xia Yongtao, Shao Xiaoming. Geochemical evidence for hydrocarbon accumulation in deep Ordovician in TS3 well block, Tahe oil field[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(3): 377-382. doi: 10.11781/sysydz201703377
Citation: Liu Yongli, Luo Mingxia, Xia Yongtao, Shao Xiaoming. Geochemical evidence for hydrocarbon accumulation in deep Ordovician in TS3 well block, Tahe oil field[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(3): 377-382. doi: 10.11781/sysydz201703377

塔河油田塔深3井区奥陶系深层油气成藏的地球化学证据

doi: 10.11781/sysydz201703377
基金项目: 国家重点基础研究发展计划(973计划)项目“中国下古生界大型油气田保存条件与分布预测”(2012CB214806)和中国石化科技部科技攻关项目“塔河油田深层储层成因、成藏规律与目标优选”(P15030)联合资助。
详细信息
    作者简介:

    刘永立(1982-),男,工程师,从事碳酸盐岩沉积、储层及成藏研究。E-mail:liuyongli526@126.com。

  • 中图分类号: TE122.3

Geochemical evidence for hydrocarbon accumulation in deep Ordovician in TS3 well block, Tahe oil field

  • 摘要: 塔深3井是塔河油田首次在奥陶系深层获得油气突破的探井,在奥陶系中-下统鹰山组上段获得高产油流。塔深3井区奥陶系深层的原油物性和该区顶部风化壳型油藏一致,均为高凝固点、高硫、高蜡、高黏度的超重质原油。原油中正构烷烃系列分布完整,但色谱基线出现不同程度的抬升;原油中普遍含有25-降藿烷系列;饱和烃和沥青质的碳同位素出现明显的“倒转”现象,这些特征均表明该区至少经历了2期油气充注成藏作用。同时,在塔深3井鹰山组的储层方解石中检测到发黄色、黄绿色、蓝色荧光的油包裹体和气包裹体,根据包裹体的均一温度判断存在3期油气充注,分别为:加里东晚期-海西早期、海西晚期及喜马拉雅晚期。结合井区原油现今的物性(超重质油)及成熟度(成熟油)分析,应以第一期原油充注为主。

     

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  • 收稿日期:  2016-08-21
  • 修回日期:  2017-03-14
  • 刊出日期:  2017-05-28

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